Improvement in looms



@with tat-25 atwt @frn WILLIAM HAINSWORTH, OF PHILADELPHIA, ASSIGNOR' TO` HIMSELF. AND AMOS GARTSIDE, OF CHESTER, PENNSYLVANIA.

Letters Patent No. 71,299, dated November 26, 1867.

IMPROVEMENT IN IJOOMS.

ein Straub referat tu in tipa Enters @non ma rating un nf tige stmt.

To ALL WHoM IT MAY ooNcEnN:

Be it known that I, WILLIAM HAIXSWORTH, of Philadelphia, county of Philadelphia, and State of Peunhave invented anew and useful Improvement in Power-Looms; and I do hereby declare that the fol- 'sylvania,

description ofthe construction and operation of the same, reference being had lowing is a full, clear, and exact to the annexed drawings, making a part of this specification, inwhich Sheet 1 is a front View of a loom-frame and the improvement. Sheet 2 is an end view. Similar letters in the drawings refer to like parts. The nature of my invention consists in the arrangeur lower parts of a series of leaves of heddles or harness, an

and rollers. The construction is as follows A represents the loom-frame, to the upper part of which are hung the rollers 1 2 3 in the usu'al manner. The heddles b b b are connected to these rollers by the straps o c e c c c. At the bottom of each leaf of the heddles are pulleys d d, one at each end. Fastened to the floor, directly under the upper pulley, are other i for working three heddles. There are also two other pulleys, ff, connected to the e cord 7i. This cord h is rstpassed over the d over the pulley on the second leaf of the ent of an endless cord and a series of pulleys to the d operating them by means of treadles, streamers,

pulleys, c e, fourjn number, floor by means of straps g g. These pulleys are connected by th pulley d on the first leaf, and then under pulley c; then up an harness. It is thenearried down to the next pulley onthe iloor; then up and over the pulley n the third leaf of harness; then down under the pulley, when the cords are connected, making an endless cord.' t't'zare wires (called streamers) connected to the rollers 1, 2, and 3 by straps J J Jr y The other. ends of the streamers are connected to the treadles k 7c k; and these treadles are constructed and operated in the usual manner. The pulleys are connected to the straps g g by hooks; and these straps have a series of holes punchedin them to admit tightening the cords t t.

The operation is as follows: The treadles are depressed by cams or tappets in the usual manner, and as the treadles are depressed, being connected to the rollers I, 2, and S, willeause them to oscillate, and raise the heddles in turn,'as connected to the treadles. Suppose the middle treadle is depressed. It is connected to roller 1, land roller 1 is connected to the front heddle. The depressing of the middle treadle will raise'it, and,

as the tappet depresses the next trcadle either to the right or'left in raising, either the middle or back heddle.

will draw down the front heddle, and so on, as one raises it, the other draws it down. The proper tension on the cords is regulated by the pulleys ff, and the holes in thestraps g g. -In weaving,|` different twills and patterns of cloths, a greater or less number of heddles is used. With my improvement one top roller is required forleach leaf of harness; but one treadle may be made to raise one, two, three, or more leaves of harness by connecting the strap from the rollers to thc streaxners; but, when more than one heddle is connected to the same streamer, the regulating-pulleys ff are disconnected from the straps gg; and to each regulating-pulley is hung a. small weight.v This will be readily uindcrstood by any weaver of ordinary ability, and must be arranged to suit the twill to be Woven.

With my improvement any twill that can be wovenonatreadlewhich cannot bedone with the ordinary present arrangement of the treadle-and`- and-roller loom may be woven face side up,

roller loom.

1. I claim, in combination with a series of leaves of harness, the endless cords and pulleys, connected and operating as described for the above purpose.

2. I claim the regulatingstraps y g, in com purpose.

' WM. IIAINSWORTH.

binaton with the endless cords h z, as described for the above Witnesses WM. -H. BROWN, Gnonen GLAUsn. 

